-1475

Appears in sequences

• Expansion of (1-x)/(1+2*x-2*x^2+x^3).at n=7A078054
• Inverse of number-theoretic triangle A109974.at n=15A109977
• A symmetrical triangle sequence: q=1;t(n,m,q)=If[q == 1, Binomial[n, m] + Eulerian[n + 1, m] - Binomial[n, m]*Eulerian[n + 1, m], (q - 1) + Binomial[n, m]^q + Eulerian[n + 1, m]^q - q*Binomial[n, m]*Eulerian[n + 1, m]].at n=29A174966
• A symmetrical triangle sequence: q=1;t(n,m,q)=If[q == 1, Binomial[n, m] + Eulerian[n + 1, m] - Binomial[n, m]*Eulerian[n + 1, m], (q - 1) + Binomial[n, m]^q + Eulerian[n + 1, m]^q - q*Binomial[n, m]*Eulerian[n + 1, m]].at n=34A174966
• Values of n such that L(6) and N(6) are both prime, where L(k) = (n^2+n+1)*2^(2*k) + (2*n+1)*2^k + 1, N(k) = (n^2+n+1)*2^k + n.at n=9A226926
• Values of n such that L(9) and N(9) are both prime, where L(k) = (n^2+n+1)*2^(2*k) + (2*n+1)*2^k + 1, N(k) = (n^2+n+1)*2^k + n.at n=19A226929
• Values of n such that L(19) and N(19) are both prime, where L(k) = (n^2+n+1)*2^(2*k) + (2*n+1)*2^k + 1, N(k) = (n^2+n+1)*2^k + n.at n=10A227522
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 481", based on the 5-celled von Neumann neighborhood.at n=27A272458
• Solution to 1 = Sum_y Product_{k in y} a(k) for each n > 0, where the sum is over all integer partitions of n with an odd number of parts.at n=31A300862
• Cn(-1) where Cn is the n-th Caylerian polynomial (see A366173).at n=7A365449